NoSQL stands for “not only SQL” and it is an approach to database design that allows data to be placed in tables. The data schema is designed carefully before building the database. NoSQL is an alternative to relational databases and it is particularly useful for handling large sets of data. NoSQL databases store data in ways that allow for great flexibility and high operational speed on the developer’s part. Many NoSQL systems were developed because of the need for better ways to process data or store content for massive sites. NoSQL databases are horizontally scalable across thousands of servers, which is unlike the SQL databases. Some of the fundamental features that can be found in a good NoSQL database especially when compared with traditional relational databases include schema agnostic, commodity hardware, nonrelational, and high distribution. Some of the factors to consider when going for a NoSQL database is the flexibility, zero downtime, ease of scalability, and multi-model. NoSQL databases are quite essential for any organization as they allow for easy storage of data in a free-form or schema-less fashion.